OInstall[.]exe

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General

Target

OInstall.exe
Size

11.8MB
MD5

f2c72fc49de94b5049a397ce560c0cbb
SHA1

f13ea923ea86ea760aa35b726f08c8017e68ecbd
SHA256

f34cb19fab14f9b20d4030066be893954bf0e6cb08b06283f4b52a3fae0de7ab
SHA512

8a92c033fa732fa49d9b547ba67e41f9631498eb9b7c19847dc4ed6ca2a2141c42aa6d31ce6fd0ce3e040f2910b69c541e03db3069a64d41864a7dfbe454ce35
SSDEEP

196608:Dq09rLLerizqNIJabcMFWAqmw7SwEB35RDl5fASNEJJEUFXYxTOu6tvss6pOHFcu:Dq0tmUabcJmaS/7lNEYUpYou6ZsGOu

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Files

OInstall.exe
.exe windows x86

Code Sign

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

Issuer

CN=WZTeam

Not Before

02/11/2016, 18:47

Not After

31/12/2039, 23:59

Subject

CN=WZTeam

Extended Key Usages

ExtKeyUsageCodeSigning

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02/05/2019, 00:00

Not After

18/01/2038, 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

11/05/2022, 00:00

Not After

10/08/2033, 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #3,O=Sectigo Limited,ST=Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

Issuer

CN=WZTeam

Not Before

02/11/2016, 18:47

Not After

31/12/2039, 23:59

Subject

CN=WZTeam

Extended Key Usages

ExtKeyUsageCodeSigning

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

Issuer

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Not Before

11/05/2022, 00:00

Not After

10/08/2033, 23:59

Subject

CN=Sectigo RSA Time Stamping Signer #3,O=Sectigo Limited,ST=Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

Issuer

CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US

Not Before

02/05/2019, 00:00

Not After

18/01/2038, 23:59

Subject

CN=Sectigo RSA Time Stamping CA,O=Sectigo Limited,L=Salford,ST=Greater Manchester,C=GB

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

e3:c4:9b:8f:79:c5:84:b0:e4:ab:10:c6:e9:1f:42:c2:70:ad:6e:39:61:f8:3c:37:a7:a5:da:4d:5d:fa:99:d8
Signer

Actual PE Digest

e3:c4:9b:8f:79:c5:84:b0:e4:ab:10:c6:e9:1f:42:c2:70:ad:6e:39:61:f8:3c:37:a7:a5:da:4d:5d:fa:99:d8

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=WZTeam

07/02/2023, 20:52
Valid: false

8f:16:d0:21:ce:23:25:c5:5b:ef:42:d9:07:45:9c:ec:2c:ae:89:c1
Signer

Actual PE Digest

8f:16:d0:21:ce:23:25:c5:5b:ef:42:d9:07:45:9c:ec:2c:ae:89:c1

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

CN=WZTeam

07/02/2023, 20:52
Valid: false

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 10.8MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 11.7MB - Virtual size: 11.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 84KB - Virtual size: 88KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows x86

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Sections

.code
Size: 257KB - Virtual size: 257KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 584KB - Virtual size: 583KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 128KB - Virtual size: 128KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 21.0MB - Virtual size: 21.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 83KB - Virtual size: 82KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.modplug
Size: - Virtual size: 20KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

Code Sign

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9eCertificate

Extended Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43Certificate

Extended Key Usages

Key Usages

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9eCertificate

Extended Key Usages

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43Certificate

Extended Key Usages

Key Usages

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9Certificate

Extended Key Usages

Key Usages

e3:c4:9b:8f:79:c5:84:b0:e4:ab:10:c6:e9:1f:42:c2:70:ad:6e:39:61:f8:3c:37:a7:a5:da:4d:5d:fa:99:d8Signer

Signature Validations

Verification

07/02/2023, 20:52 Valid: false

8f:16:d0:21:ce:23:25:c5:5b:ef:42:d9:07:45:9c:ec:2c:ae:89:c1Signer

Signature Validations

Verification

07/02/2023, 20:52 Valid: false

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 10.8MB

UPX1 Size: 11.7MB - Virtual size: 11.7MB

.rsrc Size: 84KB - Virtual size: 88KB

Headers

File Characteristics

Sections

.code Size: 257KB - Virtual size: 257KB

.text Size: 584KB - Virtual size: 583KB

.rdata Size: 128KB - Virtual size: 128KB

.data Size: 21.0MB - Virtual size: 21.4MB

.rsrc Size: 83KB - Virtual size: 82KB

.modplug Size: - Virtual size: 20KB

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

75:3e:5c:ef:ec:b6:3d:75:b2:cc:6b:83:03:2f:89:9e
Certificate

90:39:7f:9a:d2:4a:3a:13:f2:bd:91:5f:08:38:a9:43
Certificate

30:0f:6f:ac:dd:66:98:74:7c:a9:46:36:a7:78:2d:b9
Certificate

e3:c4:9b:8f:79:c5:84:b0:e4:ab:10:c6:e9:1f:42:c2:70:ad:6e:39:61:f8:3c:37:a7:a5:da:4d:5d:fa:99:d8
Signer

07/02/2023, 20:52
Valid: false

8f:16:d0:21:ce:23:25:c5:5b:ef:42:d9:07:45:9c:ec:2c:ae:89:c1
Signer

07/02/2023, 20:52
Valid: false

UPX0
Size: - Virtual size: 10.8MB

UPX1
Size: 11.7MB - Virtual size: 11.7MB

.rsrc
Size: 84KB - Virtual size: 88KB

.code
Size: 257KB - Virtual size: 257KB

.text
Size: 584KB - Virtual size: 583KB

.rdata
Size: 128KB - Virtual size: 128KB

.data
Size: 21.0MB - Virtual size: 21.4MB

.rsrc
Size: 83KB - Virtual size: 82KB

.modplug
Size: - Virtual size: 20KB